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Quartz Clock Movement Removal
This note explains quartz clock movement removal from the case. The following does not apply to quartz units made in Germany and also clock inserts. It is required that there is already access to both the back side and the dial side of the clock. There is no many case designs it would not be possible to cover this information. The clock case went to together so it comes apart that is the logic. So in whatever way we need to be able to access both the front dial and the back of the movement to continue.
Getting access to the dial area
There are many case designs and styles and there is no telling what way you're clock case is. Most times this is a very easy thing to do but of course there are some instances they do not make it user friendly. It is on the customers end to get to the dial and movement area to continue with the swap out.
Clock hand removal
Quartz Clock Movement Removal always needs the hands removed first. This is so there is access to the hardware that mounts the unit.
In the vast production of quartz clock movements exists mainly two styles of minute hands. One has the nut holding it secure and the other style is only on by friction fit. The friction fit has no nut and just pulls off with twist and pull at once. The other style has the nut on the top of the minute hand to hold it down and this is the style we work with here at clockworks.com. Removal is done by holding the minute hand while turning the nut to the left with needle nose pliers. Now it can taken off the rest of the way with the fingers instead of using the pliers.
Next is the hour hand, this is only a friction fit with a round hole in the hand, the tube its on is tapered fatter as it goes down into the movement. Just twist the hand and pull it toward you until it comes off.
If there is a second hand on the clock, it only needs to be grabbed with the thumb nails and pulled straight off of the clock to take it off.
Quartz clock movement installation
This is a quick step by step practical guide for the quartz clock movement installation. The first step is to get the old unit out of the way. This is done by removing the hands from the clock and then the hex nut that is located under where the hands used to be. The movement will fall out the back of the clock dial. now it is out of the way and you can put in your new fine quartz clock movement you bought from clockworks.com. Quartz clock movement installation is very easy usually. These are the assembly instructions for the time only quartz clock movement into the clock case.
Sequential order of installation
- 1. Place the steel hanger over the threaded post (optional)
- 2. Place black rubber washer on the post next (optional)
- 3. Start mounting the movement by putting the post through the dial
- 4. Slide the brass washer onto the post of the movement that is sticking out of the clock dial
- 5. Put hex nut on post and tighten to hold movement to the back of the clock face.
- 6. Push hour hand on the post by friction fit
- 7. Put the minute hand on the post
- 8. If using a second hand install now by friction. The post just sticks into the end and use the doughnut.
- 9. If not using a second hand just secure the minute hand with the pretty cap nut.
Quartz clock movement measuring
When the quartz clock movement is ordered it will ask for the post length. A hex nut will be on this threaded post that is to be measured. A hex nut is a 6 sided nut that secures the movement to the back of the clock dial. A clock dial is the thing with the numbers on it also called a clock face. The dial may or may not have a wood backing to it. With a wood backing the dial or face would be thicker and need a longer post. Clockworks.com offers multiple post lengths on the quartz movements for this reason. The post has to be long enough to go through whatever thickness we are calling the dial.
What to measure
When replacing a quartz clock movement you will need to measure the post on the old unit. This is so you can match it up with your new quartz movement. The post is the part that goes through the dial (face) and mounts from the front. This applies all clockworks.com quartz movements including chiming quartz, time only quartz.
Measuring quartz post lengths
To replace a quartz clock movements we need to do some measuring to get the post length. The post has to stick out through the front of the clock dial. It has to stick out on the front side enough to put on the hex nut on. The movement would then be secured to the back of the dial (clock face) so it will stay and not move. So the movement will turn and the hands will point to the right place where it was set.
Use the chart if building a clock
The below chart will tell us what size post is required to be able to go through the thickness of the clock dial. Again, all that is needed is the post to be longer than the thickness of the clock dial. A clock dial is the face or you can say the thing with the numbers on it.
Measure if replacing a clock
If replacing a movement and not building clocks it maybe easier to just measure the old post instead. Remove the quartz clock movement first by removing the hands and then the hex nut. Next measure the threaded post that the hex nut was on only. Only measure the fat part of the hand shaft that we call a post, this is the part that takes the hex nut only. This is the part that secures the movement to the dial and is all that needs to be measured. The old unit fit before its the correct post length you will need for your brand new quartz clock movement. This applies to all quartz clock movements available on clockworks.com. Such as chiming quartz and time only quartz.
- 1/16 inch thick
- 3/16 inch thick
- 5/16 inch thick
- 9/16 inch thick
- 3/4 inch thick
Size Post Needed
Quartz Clock Movement Definitions
Definitions listed are for the quartz clock movement products only. They are the terms used in replacing a quartz clock movement . This is to clarify what the names of the parts are and what we are referring to when they are explained. It is easy to replace a quartz clock movement and does not take long if it is known what the parts are called.
The clock face that the movements post goes through is called a dial. This is the face of the clock with the numbers on it. They are available in either Arabic (regular) numerals or Roman (XII for 12) style. Dials also come in many shapes or sizes. Larger sized dials may require a High Torque clock movement instead of a Low Torque. A High Torque unit is used when the dial is over 10 inches wide. This is measured from outside the 9 to outside the numeral 3 and we call this the time track diameter.
Threaded portion on the movement that takes the hex nut. This is the fat threaded portion that goes through the dial from the back to the front. The hex nut gets attached to it so the movement is mounted behind the clock dial. They all come 5/16 wide except for the QU22 unit. The QU22 has a 7/16 wide threaded post rather than the 5/16 like the rest of the quartz units. The lengths are variable and is chosen upon ordering the clock movement.
Hex Nut =
A six sided nut that threads onto the movement post. This is the nut that attaches to the post that goes through the dial from the back to the front. It secures the movement to the back of the clock dial. This should be tight enough so the movement will not spin sideways if the clock case gets moved.
Included but optional, this is the steel part that allows the clock to hang on the wall. This slips over the movements hand shaft and threaded post before the movement gets mounted to the back of the dial. Therefore you would have the hanger top of the movement and will allow it to be hung on the wall. These are usually made of steel however sometimes comes in aluminum instead. All of the time only quartz clock movements will have this hanger but not the pendulum units.
Also sometimes called pointers needles or arms, these are the things that point to the time. The hour and minute indicators to tell you want time it is. When you order the clock hands it will ask for the length of the minute hand needed. This is measured from the center of the mounting hole to the end of the minute hand only. The hour hand comes with the minute hand but is just proportionately smaller so it will look right. The minute hand we offer for the quartz units have an oblong mounting hole and the hour hand has a round hole. This is refereed to as the American standard "I" shaft style. In China they use a different style with round mounting holes in both the hour and minute instead. All of our quartz clock hands fit the quartz clock movements we sell and are the standard "I" shaft as described.
The optional skinny pointer that ticks out the seconds. The mount on the quartz second hands are just a press and friction fit. There is a post that sticks out of the backside to mount it. This tube fits over a pin that is inside of the quartz clock movement's hand shaft post. The second hands post fits down into the end of the hand shaft and mounts via friction fit. There are two styles of time only quartz clock movements, step motion and continuous sweep motion. The step unit will run this second hand in a jumpy one second intervals. The continuous sweep movement runs the second hand in a fine non stopping sweep motion around the dial instead.